CN203412599U - Stretchable constant-resistance bracket for similarity simulation test - Google Patents
Stretchable constant-resistance bracket for similarity simulation test Download PDFInfo
- Publication number
- CN203412599U CN203412599U CN201320486295.9U CN201320486295U CN203412599U CN 203412599 U CN203412599 U CN 203412599U CN 201320486295 U CN201320486295 U CN 201320486295U CN 203412599 U CN203412599 U CN 203412599U
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- Prior art keywords
- lever
- constant
- support
- stretchable
- simulation test
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- Expired - Fee Related
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Abstract
The utility model relates to a stretchable constant-resistance bracket for a planar similarity simulation test of a coal mine stope. The stretchable constant-resistance bracket is simple in operation, not only can be adapted to the subsidence of a roof plate, but also can provide a constant support force. The stretchable constant-resistance bracket is characterized in that three rectangular thin plates which are made of steel and respectively serve as a pedestal, a lever and a top beam of a bracket; two support posts with threads and nuts are welded on the pedestal, two fixed rings are welded on the lever, are sleeved on the support posts and are clamped by the nuts of the support posts to be taken as support points of the lever, and the nuts can be screwed to regulate the heights of the support points of the lever; one end of the lever is mounted at the middle of the top beam by virtue of a hinging device, and a counterweight with the proper weight is hung on the other end of the lever so as to provide a required support force.
Description
Technical field
The utility model relates to a kind of scalable constant-resistance support for the test of colliery stope plane analog simulation, belongs to Coal Mining Technology field.
Background technology
Comprehensive mining hydraulic bracket, for stope top board provides lasting support force, can adapt to a certain amount of sinking of top board, has scalable constant-resistance characteristic.Hydraulic support can affect the ore deposit of stope and press Strata Behavior, and for the test of colliery stope plane analog simulation, more laminating is actual, also should have in the exploitation space mounting of model the device of similar characteristics.Existing plane analog simulation test, lacks a kind of device that can simulate scalable constant-resistance hydraulic support, is unfavorable for improving the accuracy of result of the test.
Summary of the invention
For the deficiency of existing colliery stope analog simulation test, the utility model provides a kind of scalable constant-resistance support, can adapt to the sinking of top board, can provide constant support force for top board again.
The technical scheme that the utility model adopts is: with iron and steel, make three cuboid thin plates, be used for being used as respectively base, back timber and the lever of support.The pillar that welds two threaded and nuts on base welds two retainer rings on lever, and Fixing shrink ring is on pillar, and the nut of pillar blocks retainer ring as the fulcrum of lever, by screwing the height that nut can adjustment (adjusting) lever fulcrum.One end of lever utilizes articulated mounting to be arranged on the middle part of back timber, and the counterweight of the other end by hanging approrpiate wts provides the support force needing for back timber.
The beneficial effects of the utility model are: key property and the function of simulation longwall fully-mechanized mining working surface hydraulic support, improved the accuracy of colliery stope analog simulation test.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is front of the present utility model plan view.
Fig. 3 is side plan view of the present utility model.
Wherein: 1. base, 2. pillar, 3. height adjusting nut, 4. retainer ring, 5. lever, 6. hinged, 7. back timber, 8. face guard, 9. counterweight one, and 10. counterweight two.
The specific embodiment
With iron and steel, make three cuboid thin plates, respectively as base (1), lever (5) and the back timber (7) of support.The pillar (2) of and nut threaded two of upper welding of base (1) is welded and fixed ring (4) on lever (5), and two retainer rings (4) are inserted in pillar (2), and highly adjusting nut (3) blocks retainer ring (4) as the fulcrum of lever.The articulated mounting for one end (6) of lever (5) is connected to the centre position of back timber (7) bottom, and the other end hangs counterweight one (9), by hanging the counterweight of approrpiate wts, is that back timber (7) provides the support force needing.Counterweight two (10) is used for the stressed of balance base (1), prevents from after pillar (2) pressurized, base (1) being levered up.
Articulated mounting (6) passes to back timber (7) by the power of lever (5), for top board applies uniformly distributed load.The angle of lever (5) can change along with the sinking of top board, and support, in the process of lower contracting, can not change the support force of top board.
By screwing the height that height adjusting nut (3) can adjustment (adjusting) lever (5) fulcrum, thereby make support adapt to the test of different mining heights.
Claims (1)
1. for a scalable constant-resistance support for analog simulation test, it is characterized in that: by make three cuboid thin plates with iron and steel, be used for being used as respectively base, lever and the back timber of support; The pillar that welds two threaded and nuts on base welds two retainer rings on lever, and Fixing shrink ring is on pillar, and the nut of pillar blocks retainer ring as the fulcrum of lever, by screwing the height that nut can adjustment (adjusting) lever fulcrum; One end of lever utilizes articulated mounting to be arranged on the middle part of back timber, and the counterweight of the other end by hanging approrpiate wts provides the support force needing for back timber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486295.9U CN203412599U (en) | 2013-08-11 | 2013-08-11 | Stretchable constant-resistance bracket for similarity simulation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486295.9U CN203412599U (en) | 2013-08-11 | 2013-08-11 | Stretchable constant-resistance bracket for similarity simulation test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203412599U true CN203412599U (en) | 2014-01-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486295.9U Expired - Fee Related CN203412599U (en) | 2013-08-11 | 2013-08-11 | Stretchable constant-resistance bracket for similarity simulation test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203412599U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865086A (en) * | 2015-05-29 | 2015-08-26 | 长沙理工大学 | Lever loading system and assembly method thereof |
| CN105115774A (en) * | 2015-08-06 | 2015-12-02 | 太原理工大学 | Hydraulic support and top plate pressure measuring device used for simulating coal mining |
-
2013
- 2013-08-11 CN CN201320486295.9U patent/CN203412599U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865086A (en) * | 2015-05-29 | 2015-08-26 | 长沙理工大学 | Lever loading system and assembly method thereof |
| CN104865086B (en) * | 2015-05-29 | 2018-06-01 | 长沙理工大学 | A kind of lever load system and assemble method |
| CN105115774A (en) * | 2015-08-06 | 2015-12-02 | 太原理工大学 | Hydraulic support and top plate pressure measuring device used for simulating coal mining |
| CN105115774B (en) * | 2015-08-06 | 2017-05-10 | 太原理工大学 | Hydraulic support and top plate pressure measuring device used for simulating coal mining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20140811 |
|
| EXPY | Termination of patent right or utility model |